143541441 has 6 divisors (see below), whose sum is σ = 207337650. Its totient is φ = 95694288.

The previous prime is 143541427. The next prime is 143541467. The reversal of 143541441 is 144145341.

It can be written as a sum of positive squares in only one way, i.e., 119246400 + 24295041 = 10920^2 + 4929^2 .

It is not a de Polignac number, because 143541441 - 2⁷ = 143541313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143541491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7974516 + ... + 7974533.

It is an arithmetic number, because the mean of its divisors is an integer number (34556275).

Almost surely, 2^143541441 is an apocalyptic number.

It is an amenable number.

143541441 is a deficient number, since it is larger than the sum of its proper divisors (63796209).

143541441 is a wasteful number, since it uses less digits than its factorization.

143541441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15949055 (or 15949052 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 143541441 is about 11980.8781397692. The cubic root of 143541441 is about 523.5913147387.

Adding to 143541441 its reverse (144145341), we get a palindrome (287686782).

The spelling of 143541441 in words is "one hundred forty-three million, five hundred forty-one thousand, four hundred forty-one".